Exhaust gas purification filter

An exhaust gas purification filter, comprising:

• a plurality of cells each extending from an inflow end face, through which exhaust gas flows in, to an outflow end face, through which the exhaust gas flows out;
• a porous partition wall forming the cells in a partitioned manner;
• inflow-side sealing parts sealing openings on a side of the inflow end face of outflow cells among the cells, each outflow cell allowing outflow of the exhaust gas from the outflow cell;
• and
• outflow-side sealing parts sealing openings on a side of the outflow end face of inflow cells among the cells, each inflow cell allowing inflow of the exhaust gas to the inflow cell, wherein
• an average of sealing lengths of the inflow-side sealing parts is larger than an average of sealing lengths of the outflow-side sealing parts,
• each of the inflow-side sealing parts has a porosity of less than 60%, the partition wall has a porosity of 60% or more and 70% or less,
• assuming a pore size, at which cumulative pore volume is 50% in pore size distribution of the inflow-side sealing parts, is d50Pin, and a pore size, at which cumulative pore volume is 50% in pore size distribution of the partition wall, is d50B,
• the pore size d50Pin of the inflow-side sealing part is less than 18 μm, and
• the pore size d50B of the partition wall is 18 μm or more and 25 μm or less.